According to the Dalton's law of Partial pressure, the pressure of the gas has been the sum of the partial pressure of each gas in the mixture.

<h3 /><h3>Computation for the pressure of gas</h3>

The given gas has partial pressure of Nitrogen, $P_{N_2}=3.5\;\rm atm$

The partial pressure of Oxygen, $P_{O_2}=8\;\rm atm$

The partial pressure of Argon, $P_{Ar}=0.25\;\rm atm$

The partial pressure of Helium, $P_{He}=0.15\;\rm atm$

The total pressure, (<em>P</em>) of the gas has been given as:

$P=P_{N_2}\;+\;P_{O_2}\;+\;P_{Ar}\;+\;P_{He}\\
P=3.5\;+8\;+\;0.25\;+\;0.15\;\text{atm}\\
P=11.9\;\rm atm$

The total pressure of the gas has been 11.9 atm.

Learn more about the vapor pressure, here:

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7 0

3 years ago

Each element possesses unique chemical and physical properties. true or false

g100num [7]

True. An element's properties are based on their atomic numbers, atomic masses and electron configurations.

Hope it helped!

8 0

3 years ago

The amount of mass an object has per its volume is known as ___________. Select one of the options below as your answer:

larisa86 [58]

The amount of mass an object has per its volume is known as density.

density=mass/ volume

answer: c. density.

7 0

3 years ago